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(No Model.)

J. E. RILEY.

ELEVATOR SIGNAL.

No. 388,918. Patented Sept. 4, 1888.

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UNITED STATES' PATEN'r rrrcna JOHN n. RILEY, or NEW YORK, N. Y.

ELEVATOR-SIGNAL.

SPECIFICA'I'ION forming part of Letters Patent No, 388,918, dated Septemberl 4, 1888.

Application filed Mnich 5, 1888.

T0 aZ witam, it may concern:

Be it known that I, JOHN E. RILEY, a citizen of the United States, residing at New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Signal Attachmenls for Elcvators; and I do declare the following to be a full, clear, and exact description of the invcntion, such as will enable others skilled in the art to which it appertains to make and use the same. reference being had to the accompanying drawings, and to the letters and figures of reference niarked thereon, which form a part of this specification.

My invention consists of an improved contrivance for an automatic alarm-signal attach` mcnt to passenger and other elevators, for giving notice in advance of its approach to landings and other places, and particularly to the basement, for warning persons who may happen to be present in such positions as might expose them to injury, for escape in time for avoidauce, as hereinaftcr fully described, referring to the drawings, in which- Figure l is a front elcvation of an elevator having' niy iniprovcd attachment and showing the action of the signal when the elevator descends; and Fig. 2 is a detail of the apparatus, showing,` a contrivance to allow the elevator to ascend without sonnding the alarm, which is part of my contrivance for such cases as do not require the signal on the up run.

On the top of the elevatorscarriage o, I arrange a gong1 b, or other approved sounder on any approved stand, c, with a striking haminer, d, having an actuating-spring, e, which slrilies the gong when the hammer is liftcd or withdrawn therefrom; and for withdrawing the hammer preparatory to striling I have arrangcd the haminer-staif with an extension, f, project-mg` into the notches of the safety rack, so that the points of the rack lift or Withdraw the hainmer from the bell when the carriage descends, and thus cause the sounding of the alarm on the downward run. I may of course contrive for the sonnding of the hammer on the npward course also; but as that is Serial No. 266.267. (No model.)

not generally required I have connected the extension part f of the hammer-slaff to the other part, d, by thejoint h., allowing it to yield for passing the points of the tecth on the up run, and have snspended said extension by a spring, i, to return it to the normal position after passing the teeth, and have provided the lap-extensionj from the pivot h along part d, for making the staff rigid as against the tecth ou the down run for working the bell.

.This attachment is more important in factories and other places where the elevators run infrequently and are not well guarded or protected in the basement to prevent persons getting under them, and where doors are not always closed along` the way on the floors above.

l am aware that an alarm-signal has been arranged on the car in connection with studs specially provided along the clevator-way for Operating the hamnier; but my irnprovement is such as is operative by the Safety-rack, so as to avoid the expcnse of specially providing the studs therefor.

What I olaim, and desire to secure by Letters Patent, is-

l. The combination of the bcll located on an elevator car, the Safety-rack, the hcll-hainmer having the jointcd and overlapped extensionstaff, and the bell-haminer-retracting spring, said staff being adapted to eng-age the teeth of the rack and vibrate the hammer when the car moves downwardly and to swing` free with` out affecting,` the hammer when the car inoves upwardly, all snbstantially as set forth.

2. The combination, with the elevator car or carriage and the safety-rack, of the bell attached to the car, the jointed and overlapped hainmer-staff, hummer-Working spring, and the hammerstalfextension-controlling spring, snbstantially ns described.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN E. RILEY.

Vituesses:

W. J. MORGAN, A. P. THAYER. 

